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Finding the Fourth Proportional to 28,846.53, 39,781.53 and 22,132.44

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Solution

The fourth proportional to 28,846.53, 39,781.53 and 22,132.44 is: 30,522.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,846.53 : 39,781.53 = 22,132.44 : x
  2. Step 2: Convert to fraction form
    28,846.53/39,781.53 = 22,132.44/x
  3. Step 3: Cross multiply
    28,846.53x = 39,781.53 × 22,132.44
  4. Step 4: Simplify right side
    28,846.53x = 880,462,325.83
  5. Step 5: Solve for x
    x = 880,462,325.83/28,846.53
  6. Step 6: Final answer
    x = 30,522.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.